Event

2021/10/07 22:41:23 NW Chiba Pref. Earthquake (M=5.9, h=75 km)

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Location of stations

Site Map
Site Map

List of records

Code Station Δ (km) IJMA Azim. Loc. Peak Acc. (cm/s2) Notes
H1 H2 V
CHPM Main Building, Chiba Prefectural Office 2 3.9 333° B1F* 41.9 50.2 17.2 [wave] [data]
08F 82.6 83.5 27.2 [wave]
19F 55.1 52.6 49.4 [wave]
08F 76.8 68.5 20.0 [wave]
14F 87.9 61.8 41.0 [wave]
CHB Chiba Government Office Bldg. #2 3 0.9 346° B1F 52.1 63.5 21.8 [wave]
08F 190.6 164.0 34.1 [wave]
GL* 2.0 0.4 2.0 [wave] [data]
ICK Gyotoku Library, Ichikawa City 20 4.4 321° 01F* 90.5 42.7 19.5 [wave] [data]
02F 134.9 53.2 24.3 [wave]
05F 242.3 100.3 21.8 [wave]
MNM Minamisuna Apartment #3 27 4.0 180° 15F 91.1 134.9 18.8 [wave]
01F* 39.2 45.0 8.4 [wave] [data]
SNN Shinonome National Public Officers Apartment House 28 3.9 039° GL* 48.8 46.6 25.2 [wave] [data]
01F 21.3 34.6 8.9 [wave]
M4F 31.3 40.8 8.6 [wave]
04F 25.5 35.1 9.8 [wave]
36F 29.8 47.8 18.1 [wave]
20F 17.2 27.6 14.8 [wave]
TKD Kosha Tower Tsukuda 30 3.7 180° 01F* 30.2 35.6 9.2 [wave] [data]
18F 30.3 41.3 18.7 [wave]
37F 72.8 63.7 9.8 [wave]
SMD Sumida Ward Office 30 3.5 000° 20F 60.0 97.7 18.8 [wave]
08F 56.0 66.8 13.4 [wave]
B1F* 21.8 23.7 9.0 [wave] [data]
TUF Tokyo University of Marine Science and Technology 32 4.7 000° 01F 131.7 126.8 42.1 [wave]
GL* 163.4 113.2 42.0 [wave] [data]
07F 370.7 190.5 57.9 [wave]
NMW Main Building, National Museum of Western Art 33 3.8 218° GL* 78.0 53.0 32.7 [wave] [data]
B1FW 33.4 27.9 16.2 [wave]
B1FE 37.9 31.5 24.8 [wave]
01FW 16.2 36.1 19.3 [wave]
01FE 26.8 34.4 25.7 [wave]
04F 35.3 34.4 22.9 [wave]
CGC Central Government Office Bldg. #6 33 3.5 208° 01F* 34.1 31.0 9.9 [wave] [data]
20B 35.3 55.9 38.6 [wave]
19C 33.0 58.6 24.4 [wave]
CG2 Central Government Office Bldg. #2 33 3.4 208° B4F* 30.4 28.1 9.3 [wave] [data]
13F 37.0 34.9 19.6 [wave]
21F 33.7 39.5 25.8 [wave]
CG7 Central Government Office Bldg. #7 33 3.4 294° 01F* 30.9 22.8 12.2 [wave] [data]
B2F 26.0 16.6 7.1 [wave]
16F 29.2 20.0 12.3 [wave]
32F 39.2 21.1 18.7 [wave]
CG3 Central Government Office Bldg. #3 33 3.7 208° B3F* 34.8 38.3 11.1 [wave] [data]
B2F 17.9 14.9 9.5 [wave]
12F 31.9 27.6 17.0 [wave]
MST Misato City Hall 34 4.6 258° 01F 65.5 80.8 16.0 [wave]
GL* 110.2 0.1 23.8 [wave] [data]
07F 138.8 124.3 24.9 [wave]
UTK University of Tokyo 34 3.8 348° 7FN 91.1 62.1 14.1 [wave]
7FS 94.0 90.4 30.8 [wave]
01F 24.9 43.6 11.8 [wave]
GL* 53.8 61.7 16.4 [wave] [data]
KWS Kawasaki-minami Office, Labour Standards Bureau 37 4.4 045° 01F* 61.0 102.6 14.6 [wave] [data]
02F 69.8 109.6 18.0 [wave]
07F 175.3 316.4 50.3 [wave]
YYG Building C, National Olympics Memorial Youth Center 38 4.2 355° B1F 86.3 88.8 31.8 [wave]
GL* 103.5 92.8 24.1 [wave] [data]
04F 106.4 129.3 31.2 [wave]
AKB Akabane Hall, Kita Ward 40 4.1 354° B1F* 89.0 49.8 18.3 [wave] [data]
06F 112.1 123.3 26.5 [wave]
NKN Nakano Branch, Tokyo Legal Affairs Bureau 42 4.1 359° 06F 108.1 144.5 26.5 [wave]
01F* 63.2 68.4 17.2 [wave] [data]
KSG Koshigaya Branch, Saitama Legal Affairs Bureau 43 4.2 150° 1F* 51.7 49.6 11.9 [wave] [data]
1F[V] 6.2 10.3 1.1 [wave]
MTK Mitsukaido Branch, Shimodate River Office 50 4.1 090° 01F* 61.0 61.2 16.9 [wave] [data]
JAXA Headquarters Building, JAXA Tsukuba Space Center 53 3.3 335° B1F* 35.2 27.0 8.2 [wave] [data]
01F 24.7 24.4 10.3 [wave]
11F 38.0 39.5 19.5 [wave]
SITA Saitama Shintoshin Government Office Building (Arena) 54 3.9 313° 01F* 43.6 45.0 14.9 [wave] [data]
SIT2 Saitama Shintoshin Government Office Building #2 54 3.7 340° B3F* 30.5 38.7 9.7 [wave] [data]
10FS 40.9 66.3 14.9 [wave]
10FN 44.8 63.4 15.5 [wave]
27FS 95.4 178.5 37.0 [wave]
27FC 85.2 149.8 29.4 [wave]
KDI College of Land, Infrastructure and Transport 58 3.9 090° 03F 66.0 152.7 12.5 [wave]
01F 48.7 69.7 14.7 [wave]
GL* 59.5 71.3 17.6 [wave] [data]
NIT Nippon Institute of Technology 60 4.2 288° GL* 75.8 67.5 14.1 [wave] [data]
01F 66.7 31.8 11.0 [wave]
06F 148.9 123.0 17.3 [wave]
ANX Annex and Main Bldg., Building Research Institute 60 3.3 180° A01* 20.1 16.8 9.0 [wave] [data]
A14 16.4 15.9 6.4 [wave]
A43 0.0 0.0 0.0 [wave]
A89 11.1 9.3 5.0 [wave]
N14 17.4 15.8 7.3 [wave]
B01 23.3 17.7 9.7 [wave]
C01 19.5 17.5 8.3 [wave]
BFE 15.4 13.0 8.8 [wave]
BFN 15.9 14.5 7.8 [wave]
BFS 15.9 12.9 8.8 [wave]
1FE 16.0 13.8 9.1 [wave]
2FE 16.2 15.3 8.2 [wave]
2FW 17.0 15.4 8.2 [wave]
5FE 28.0 46.1 10.5 [wave]
5FW 38.1 43.5 10.8 [wave]
8FE 46.6 59.5 16.3 [wave]
8FN 89.3 53.0 12.7 [wave]
8FS 87.5 81.7 15.4 [wave]
MBC 16.6 13.0 7.7 [wave]
M5C 33.1 39.8 11.8 [wave]
M8C 64.6 66.2 14.6 [wave]
M8E 50.4 66.5 15.2 [wave]
TKB Tsukuba Mt. Observatory, ERI 69 2.2 000° GL* 13.3 10.2 8.0 [wave] [data]
YMN Yamanashi Prefectural Office 139 0.0 006° B1F 7.6 10.2 4.5 [wave]
GL* 0.0 0.0 0.0 [wave] [data]
01F 7.4 9.3 5.3 [wave]
08F 9.8 8.9 6.8 [wave]
SMZ Shimizu Government Office Bldg. 160 1.9 165° 01F* 3.5 3.8 1.9 [wave] [data]
06F 13.1 11.4 1.3 [wave]
HSG Urban Rafre Hoshigaoka #10 286 0.5 000° GL* 0.9 0.8 0.5 [wave] [data]
01F 0.7 0.7 0.4 [wave]
25F 2.5 2.8 0.7 [wave]
SKS Sakishima Office, Osaka Prefecture 439 0.3 229° 01F* 0.5 0.5 0.3 [wave] [data]
18F 1.4 0.9 0.4 [wave]
38F 1.3 0.9 0.7 [wave]
52FN 1.5 1.4 0.8 [wave]
52FS 1.4 1.4 0.9 [wave]
MYKC Miyako City Hall 479 0.8 165° 01F 1.2 1.1 0.4 [wave]
06F 3.1 3.8 0.6 [wave]
GL* 1.7 1.2 0.8 [wave] [data]

Legend

M : JMA Magnitude
h : Focal depth (km)
Δ : Epicentral distance (km)
IJMA : JMA Seismic Intensity (of the asterisked sensor)
Azim. : Installation azimuth
H1, H2, V : Peak accelerations in H1, H2 and V directions (cm/s2)